private void BtnCaptureCam_Click(object sender, EventArgs e)
{
// Get DroidCam video window
IntPtr hwndCaptureWindow = WinApi.User32.User32Methods.FindWindow(null, "DroidCam Video");
if (hwndCaptureWindow != null)
{
// Get dimensions of the capture window
NetCoreEx.Geometry.Rectangle rect = new NetCoreEx.Geometry.Rectangle();
GetWindowRect(hwndCaptureWindow, out rect);
// Do fancy DC bitblit
IntPtr hdcFrom = GetDC(hwndCaptureWindow);
IntPtr hdcTo = CreateCompatibleDC(hdcFrom);
IntPtr bitmapTo = CreateCompatibleBitmap(hdcFrom, rect.Width, rect.Height);
SelectObject(hdcTo, bitmapTo);
BitBlt(hdcTo, 0, 0, rect.Width, rect.Height, hdcFrom, 0, 0, WinApi.Gdi32.BitBltFlags.SRCCOPY);
// Create the image
Bitmap image = Image.FromHbitmap(bitmapTo);
// Release resources
DeleteObject(bitmapTo);
DeleteDC(hdcTo);
ReleaseDC(hwndCaptureWindow, hdcFrom);
// Apply the image
ApplyImageFilters(image);
}
}
public void Init(string title, int width, int height, bool vsync, bool fullscreen)
{
if (m_Info != null)
{
throw new InvalidOperationException("application already initialized");
}
m_Info = new ApplicationInfo
{
Title = title,
Width = width,
Height = height,
VSync = vsync,
FullScreen = fullscreen
};
IntPtr hInstance = Kernel32Methods.GetModuleHandle(IntPtr.Zero);
m_WindowProc = WindowProc;
var wc = new WindowClassEx
{
Size = (uint)Marshal.SizeOf <WindowClassEx>(),
ClassName = "MainWindow",
CursorHandle = User32Helpers.LoadCursor(IntPtr.Zero, SystemCursor.IDC_ARROW),
IconHandle = User32Helpers.LoadIcon(IntPtr.Zero, SystemIcon.IDI_APPLICATION),
Styles = WindowClassStyles.CS_HREDRAW | WindowClassStyles.CS_VREDRAW | WindowClassStyles.CS_OWNDC,
BackgroundBrushHandle = new IntPtr((int)StockObject.WHITE_BRUSH),
WindowProc = m_WindowProc,
InstanceHandle = hInstance
};
if (User32Methods.RegisterClassEx(ref wc) == 0)
{
throw new ExternalException("window registration failed");
}
NetCoreEx.Geometry.Rectangle size = new NetCoreEx.Geometry.Rectangle(0, 0, width, height);
User32Methods.AdjustWindowRectEx(ref size, WindowStyles.WS_OVERLAPPEDWINDOW | WindowStyles.WS_CLIPCHILDREN | WindowStyles.WS_CLIPSIBLINGS,
false, WindowExStyles.WS_EX_APPWINDOW | WindowExStyles.WS_EX_WINDOWEDGE);
m_hWnd = User32Methods.CreateWindowEx(WindowExStyles.WS_EX_APPWINDOW | WindowExStyles.WS_EX_WINDOWEDGE, wc.ClassName,
title, WindowStyles.WS_OVERLAPPEDWINDOW | WindowStyles.WS_CLIPCHILDREN | WindowStyles.WS_CLIPSIBLINGS,
(int)CreateWindowFlags.CW_USEDEFAULT, (int)CreateWindowFlags.CW_USEDEFAULT,
size.Right + (-size.Left), size.Bottom + (-size.Top), IntPtr.Zero, IntPtr.Zero, hInstance, IntPtr.Zero);
if (m_hWnd == IntPtr.Zero)
{
throw new ExternalException("window creation failed");
}
User32Methods.ShowWindow(m_hWnd, ShowWindowCommands.SW_SHOWNORMAL);
User32Methods.UpdateWindow(m_hWnd);
Context.Instance.Init(m_hWnd, m_Info);
Renderer.Instance.Init();
Script.LuaEngine.Instance.Init();
}
private Point ScreenToClient(Point point)
{
var client = new Rectangle();
User32Methods.AdjustWindowRectEx(ref client, GetStyles(), User32Methods.GetMenu(Handle) != IntPtr.Zero,
GetExStyles());
GetWindowRect(out Rectangle window);
return(new Point(point.X - window.Left + client.Left, point.Y - window.Top + client.Top));
}
